can you BRIDGE 2 MODEM AND WI-FI ROUTER TOGETHER ON THE SAME CABLE LINE I HAVE TWO SBG6580 MODELS AND THEIR CABLE MODEMS

Solution
First if your internet company let you use two modems, you would have to pay for 2 accounts. Usually a cable modem has to be authorized for your account, so just plugging 2 in shouldn't give you a 2nd line.

Now bridging connections doesn't do anything for gaming as you still have two IP addresses. Bridging just speeds up surfing, and downloading mostly. You would still need a 3rd modem capable of bridging though.
First if your internet company let you use two modems, you would have to pay for 2 accounts. Usually a cable modem has to be authorized for your account, so just plugging 2 in shouldn't give you a 2nd line.

Now bridging connections doesn't do anything for gaming as you still have two IP addresses. Bridging just speeds up surfing, and downloading mostly. You would still need a 3rd modem capable of bridging though.
 
Solution